Zbyszek Z created CASSANDRA-19700:
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Summary: Disabling internode compression causes high CPU usage and
load
Key: CASSANDRA-19700
URL: https://issues.apache.org/jira/browse/CASSANDRA-19700
Project: Cassandra
Issue Type: Task
Reporter: Zbyszek Z
Attachments: image001.jpg
I am not sure this is BUG or feature but cassandra is acting contrary to the
belief that compression causes higher CPU usage. I have attached comparision
graph - first part (left) is a identical cluster that have
internode_compression={*}dc{*} and second part (right hand) is
internode_compression={*}all.{*}
Contrary to what one would thought, enabling compression causes signifficant
drop in load and cpu usage.
!image001.jpg|width=532,height=327!
I am reporting it only becouse maybe there is different pipeline in cassandra
that handles networking that is sub-optimal and does not handle high traffic
well (just blind-shoot).
Any thoughts?
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